CN201780078U - Detecting tool for measuring abrasion loss of pulley - Google Patents
Detecting tool for measuring abrasion loss of pulley Download PDFInfo
- Publication number
- CN201780078U CN201780078U CN2010202713867U CN201020271386U CN201780078U CN 201780078 U CN201780078 U CN 201780078U CN 2010202713867 U CN2010202713867 U CN 2010202713867U CN 201020271386 U CN201020271386 U CN 201020271386U CN 201780078 U CN201780078 U CN 201780078U
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- pulley
- cross bar
- arm
- claw hook
- knee
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model relates to a detecting tool for measuring the abrasion loss of a pulley, which comprises a cross rod, wherein a semicircular bent rod is arranged above the cross rod; the two ends of the cross rod are respectively and fixedly connected with the two ends of the bent rod; the midpoint position of the cross rod is hinged with a fixed arm and a movable arm on the same side of the bent rod; the upper end of the fixed arm is fixedly connected with the midpoint position of the bent rod; the upper end of the movable arm is a rotating free end; a fixed claw hook extends downwards out of the hinged position of the fixed arm and the cross rod; a movable claw hook extends downwards out of the hinged position of the movable arm and the cross rod; the movable claw hook can rotate along the rotation of the movable arm; the fixed claw hook and the movable claw hook jointly form a measuring claw; a longitudinal through hole is arranged on the cross rod; and a depth measuring arm forming a movable pair with the cross rod is arranged in the through hole. The detecting tool has the advantages that the structure is simple and practical; the abrasion loss of the wall thickness of a pulley slot and the abrasion loss of the bottom of the pulley slot can be rapidly measured; and the detecting device is beneficial to the real-time tracking on the degradation tendency of the pulley.
Description
Technical field
The utility model relates to a kind of testing tool that is used to measure the pulley wear extent, especially a kind of testing tool that is used to measure the pulley wear extent of lifting mechanism of gantry crane.
Background technology
The version of the lifting mechanism of trestle crane as shown in Figure 1, used pulley comprises overload pulley 1, man-like shelf large pulley 2 and trunk back end large pulley 3.The trestle crane hoist rope comes out to enter the pulley groove of overload pulley from reel 4, enters man-like shelf large pulley 2 with the inclined angle alpha less than 5 ° again, enters trunk back end large pulley 3 at last.Wherein, overload pulley 1 mainly is subjected to the radial force effect, and the wearing and tearing of this pulley mainly show as the race bottom abrasion; Man-like shelf large pulley 2 is subjected to radially the power with the normal direction both direction, and wire rope and pulley race wall friction are more, and the wearing and tearing of this pulley mainly show as the wearing and tearing of wheel cell wall, and abration position is positioned near 1/2 place of pulley groove depth.
Pulley basic structure as shown in Figure 2, wherein m is the wall thickness of fray, d is the diameter of wire rope, H is the pulley groove degree of depth, D is the pulley groove base diameter.When race wall thickness wearing and tearing in use take place and reach 20% phenomenon of origianl wall thickness in pulley or when taking place to make race base diameter decrease reach 50% phenomenon of wirerope diameter because of wearing and tearing, this pulley just need be scrapped, to avoid generation equipment to owe maintenance and even pulley is worn out or equipment is crossed maintenance and caused maintenance cost to increase.And in production reality, do not have ready-made instrument for direct measurement, when actual job, or be to judge, and this judgement is often unreliable by experience and naked eyes sense organ; Be to use survey instruments such as vernier caliper, but because pulley structure, vernier caliper can not make things convenient for measures the pulley wear extent exactly.
The utility model content
The purpose of this utility model is: overcome the problem that above-mentioned prior art exists, provide a kind of simple and practical being used to measure the testing tool of pulley wear extent, can measure the wear extent of pulley fast.
In order to reach above purpose, the testing tool that is used to measure the pulley wear extent of the present utility model comprises a cross bar, and described cross bar top is provided with a semicircle knee, fixedlys connected with the two ends of knee respectively in the two ends of described cross bar; The midpoint of described cross bar is hinged with fixed arm and the lever arm with the knee homonymy, fixedlys connected with the midpoint of knee in the upper end of described fixed arm, and the upper end of described lever arm is for rotating free end; Described fixed arm is extending fixedly claw hook downwards with the hinged place of cross bar, described lever arm is extending movable claw hook downwards with the hinged place of cross bar, described movable claw hook rotates with the rotation of lever arm, and described fixedly claw hook and movable claw hook constitute measuring claw jointly; Also be provided with longitudinal hole on the described cross bar, be mounted with the depth measurement arm that constitutes moving sets with cross bar in this through hole.
Further, the top of described fixed arm and lever arm is connected by spring.
Further, be carved with the size scale of weighing the pulley groove wall thickness on the described knee.
Further, be carved with the size scale of weighing the pulley groove degree of depth on the described depth measurement arm.
Further, described cross bar is fixedlyed connected by round nut with knee.
Further, described cross bar is hinged by mushroom rivet and fixed arm and lever arm.
The utility model instrument has taken into full account the special construction of pulley, adopt measuring claw to detect the pulley groove wall thickness degree of wear on the one hand, adopt the depth measurement arm to detect the pulley groove degree of wear on the other hand, simple and practical, can measure pulley groove wall thickness wear extent and pulley groove bottom abrasion amount fast, help the deterioration tendency of real-time follow-up pulley.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is the version synoptic diagram of lifting mechanism of gantry crane.
Fig. 2 is the structural representation of pulley.
Fig. 3 is the structural representation of the utility model embodiment.
Embodiment
Embodiment one
The testing tool basic structure that being used to of present embodiment measured the pulley wear extent as shown in Figure 3, comprise a cross bar 5, its top is provided with a semicircle knee 6, fixedlyed connected by round nut with the two ends of knee 6 respectively in the two ends of cross bar 5, hinged fixed arm 7 and the lever arm 8 with knee 6 homonymies of the midpoint of cross bar 5 by mushroom rivet, fixedly connected with the midpoint of knee 6 in the upper end of fixed arm 7, the upper end of lever arm 8 is for rotating free end, fixed arm 7 is extending fixedly claw hook 71 downwards with the hinged place of cross bar 5, lever arm 8 is extending movable claw hook 81 downwards with the hinged place of cross bar 5, movable claw hook 81 rotates with the rotation of lever arm 8, fixedly claw hook 71 and movable claw hook 81 constitute measuring claws jointly, also be provided with longitudinal hole on the cross bar 5, be mounted with the depth measurement arm 9 that constitutes moving sets with cross bar 5 in it.
Fixed arm 7 is connected by spring with the top of lever arm 8.
Be carved with the size scale of weighing the pulley groove wall thickness on the knee 6.
Be carved with the size scale of weighing the pulley groove degree of depth on the depth measurement arm 9.
Pulley groove wall thickness measuring process: (1) draws back lever arm, to open the movable claw hook of measuring claw; (2) fixedly claw hook is positioned at the abrading section of pulley wall; (3) unclamp lever arm, make the movable claw clasp joint contact the pulley wall; (4) read lever arm indication scale on knee.Before pulley uses with in the use, implement above-mentioned measuring process respectively, can draw pulley groove wall thickness wear extent as calculated, when reach origianl wall thickness 20% the time, this pulley promptly needs to scrap.
Pulley groove depth survey process: (1) lies in the pulley groove top with cross bar; (2) the depth measurement arm is aimed at pulley groove bottom centre; (3) move down the depth measurement arm to the pulley groove bottom; (4) read plane indication scale on the depth measurement arm on the cross bar.Because of there are fixedly operation relation in pulley groove degree of depth recruitment and pulley groove base diameter reduction, before pulley uses and in the use, implement above-mentioned measuring process respectively, can draw pulley groove base diameter reduction as calculated, when reach wirerope diameter 50% the time, this pulley promptly needs to scrap.
In addition to the implementation, the utility model can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of the utility model requirement.
Claims (6)
1. a testing tool that is used to measure the pulley wear extent is characterized in that, comprises a cross bar, and described cross bar top is provided with a semicircle knee, fixedlys connected with the two ends of knee respectively in the two ends of described cross bar; The midpoint of described cross bar is hinged with fixed arm and the lever arm with the knee homonymy, fixedlys connected with the midpoint of knee in the upper end of described fixed arm, and the upper end of described lever arm is for rotating free end; Described fixed arm is extending fixedly claw hook downwards with the hinged place of cross bar, described lever arm is extending movable claw hook downwards with the hinged place of cross bar, described movable claw hook rotates with the rotation of lever arm, and described fixedly claw hook and movable claw hook constitute measuring claw jointly; Also be provided with longitudinal hole on the described cross bar, be mounted with the depth measurement arm that constitutes moving sets with cross bar in this through hole.
2. the testing tool that is used to measure the pulley wear extent according to claim 1 is characterized in that, the top of described fixed arm and lever arm is connected by spring.
3. the testing tool that is used to measure the pulley wear extent according to claim 1 is characterized in that, is carved with the size scale of weighing the pulley groove wall thickness on the described knee.
4. the testing tool that is used to measure the pulley wear extent according to claim 1 is characterized in that, is carved with the size scale of weighing the pulley groove degree of depth on the described depth measurement arm.
5. the testing tool that is used to measure the pulley wear extent according to claim 1 is characterized in that described cross bar is fixedlyed connected by round nut with knee.
6. the testing tool that is used to measure the pulley wear extent according to claim 1 is characterized in that, described cross bar is hinged by mushroom rivet and fixed arm and lever arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202713867U CN201780078U (en) | 2010-07-27 | 2010-07-27 | Detecting tool for measuring abrasion loss of pulley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202713867U CN201780078U (en) | 2010-07-27 | 2010-07-27 | Detecting tool for measuring abrasion loss of pulley |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201780078U true CN201780078U (en) | 2011-03-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202713867U Expired - Fee Related CN201780078U (en) | 2010-07-27 | 2010-07-27 | Detecting tool for measuring abrasion loss of pulley |
Country Status (1)
| Country | Link |
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| CN (1) | CN201780078U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103134668A (en) * | 2011-11-25 | 2013-06-05 | 徐工集团工程机械股份有限公司 | Pulley rotating flexibility detection device and detection method using same |
| CN108692634A (en) * | 2017-03-29 | 2018-10-23 | 株式会社日立产机系统 | The wear detecting method of steel wire rope groove in electrical hoist and electrical hoist |
| CN109397152A (en) * | 2018-12-29 | 2019-03-01 | 重庆亿普机电有限公司 | Chucking device is used in part processing |
| CN109798823A (en) * | 2018-11-22 | 2019-05-24 | 中国航发贵州红林航空动力控制科技有限公司 | It is a kind of for measuring the device of plane inclined hole depth |
-
2010
- 2010-07-27 CN CN2010202713867U patent/CN201780078U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103134668A (en) * | 2011-11-25 | 2013-06-05 | 徐工集团工程机械股份有限公司 | Pulley rotating flexibility detection device and detection method using same |
| CN103134668B (en) * | 2011-11-25 | 2015-08-19 | 徐工集团工程机械股份有限公司 | Pulley rotation device for detecting flexibility and utilize it to carry out the method detected |
| CN108692634A (en) * | 2017-03-29 | 2018-10-23 | 株式会社日立产机系统 | The wear detecting method of steel wire rope groove in electrical hoist and electrical hoist |
| CN108692634B (en) * | 2017-03-29 | 2020-06-16 | 株式会社日立产机系统 | Electric hoist and method for detecting wear of wire rope groove in electric hoist |
| CN109798823A (en) * | 2018-11-22 | 2019-05-24 | 中国航发贵州红林航空动力控制科技有限公司 | It is a kind of for measuring the device of plane inclined hole depth |
| CN109397152A (en) * | 2018-12-29 | 2019-03-01 | 重庆亿普机电有限公司 | Chucking device is used in part processing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110330 Termination date: 20180727 |